US8742617B2 - Battery apparatus - Google Patents

Battery apparatus Download PDF

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Publication number
US8742617B2
US8742617B2 US13/133,323 US200913133323A US8742617B2 US 8742617 B2 US8742617 B2 US 8742617B2 US 200913133323 A US200913133323 A US 200913133323A US 8742617 B2 US8742617 B2 US 8742617B2
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United States
Prior art keywords
management means
battery management
battery
identification information
central
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US13/133,323
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English (en)
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US20110273023A1 (en
Inventor
Takehiko Nishida
Katsuo Hashizaki
Kazuyuki Adachi
Shinji Murakami
Kouji Kurayama
Hirofumi Fujita
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Kyushu Electric Power Co Inc
Mitsubishi Heavy Industries Ltd
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Kyushu Electric Power Co Inc
Mitsubishi Heavy Industries Ltd
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Application filed by Kyushu Electric Power Co Inc, Mitsubishi Heavy Industries Ltd filed Critical Kyushu Electric Power Co Inc
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC. reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ADACHI, KAZUYUKI, FUJITA, HIROFUMI, HASHIZAKI, KATSUO, KURAYAMA, KOUJI, MURAKAMI, SHINJI, NISHIDA, TAKEHIKO
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to battery apparatuses.
  • PTL 1 discloses a technique in which a terminal to be newly connected transmits a connection request message containing provisional identification information to other terminals and sets the provisional identification information as its identification information unless it receives, as a response thereto, a conflict message indicating a terminal having identification information conflicting with the provisional identification information from the other terminals that have received the connection request message.
  • PTL 2 discloses a technique in which a central unit regularly transmits an allocation request message for identification information to a plurality of terminals connected thereto via a network and allocates new identification information to a terminal newly connected to the network if the central unit receives a reply to the allocation request message from the new terminal.
  • the invention disclosed in PTL 1 above has a problem in that it cannot manage identification information in ascending or descending order because the terminal to be newly connected generates a request message using provisional identification information.
  • the invention disclosed in PTL 2 above has a problem in that it imposes a communication load because it regularly transmits an allocation request message.
  • An object of the present invention which has been made to solve the above problems, is to provide a battery apparatus capable of avoiding an increased communication load and allocating identification information matching the physical connection order of row batteries.
  • the present invention employs the following solutions.
  • the present invention provides a battery apparatus including a row battery group including a plurality of series-connected row batteries including one or more battery cells; a plurality of battery management means, corresponding to the individual row batteries, for managing the battery statuses of the corresponding row batteries; central management means for granting unique identification information to the individual battery management means and acquiring information about the battery statuses of the row batteries from the respective battery management means for management; second communication lines with which the plurality of battery management means are daisy-chained; a first communication line with which, of the plurality of battery management means, the battery management means located at one end is connected to the central management means; and a plurality of connection switching means, provided in the individual second communication lines between the battery management means, for switching the connection and disconnection between the battery management means.
  • connection switching means are turned off in an initial state, and each of the battery management means, upon determination of identification information thereof through communication with the central management means, stores the determined identification information and turns on the connection switching means between the battery management means and another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the battery management means located at one end is connected to the central management means with the first communication line, and the individual battery management means are daisy-chained with the second communication lines.
  • the plurality of connection switching means are provided in the individual second communication lines to switch the connection and disconnection between the battery management means, and upon granting of identification information to each of the battery control means through communication with the central management means, the battery control means turns on the connection switching means between the battery management means and another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • identification information is granted to the most upstream battery management means connected to the central management means via the first communication line, and then the most upstream battery management means turns on the connection switching means between the battery management means and another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the central management means grants identification information in order from the battery management means located upstream.
  • the central management means may transmit a first request requesting allocation of identification information to the battery management means connected thereto via the first communication line.
  • the battery management means that has received the first request may transmit a first response containing identification information that the battery management means possesses to the central management means and turn on the connection switching means between the battery management means and another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the central management means that has received the first response may store the identification information contained in the first response received from the battery management means and transmit a second request containing next identification information generated on the basis of a predetermined rule to the other battery management means.
  • the other battery management means that has received the second request may store the identification information contained in the received second request as identification information thereof, transmit a second response notifying the central management means that the battery management means has stored the identification information to the central management means, and turn on the connection switching means between the battery management means and another battery management means located immediately downstream thereof.
  • the present invention provides a battery apparatus including a row battery group including a plurality of series-connected connected row batteries including one or more battery cells; a plurality of battery management means, corresponding to the individual row batteries, for managing the battery statuses of the corresponding row batteries; central management means for granting unique identification information to the individual battery management means and acquiring information about the battery statuses of the row batteries from the respective battery management means for management; second communication lines with which the plurality of battery management means are daisy-chained; and a first communication line with which, of the plurality of battery management means, the battery management means located at one end is connected to the central management means.
  • the battery management means other than the most upstream battery management means connected to the central management means via the first communication line are powered off in an initial state, and each of the battery management means, upon determination of identification information thereof through communication with the central management means, stores the determined identification information and transmits a power-on instruction to another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the battery management means located at one end is connected to the central management means with the first communication line, and the individual battery management means are daisy-chained with the second communication lines.
  • the battery control means Upon granting of identification information to each of the battery control means through communication with the central management means, the battery control means transmits a power-on instruction to another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • identification information is granted to the most upstream battery management means connected to the central management means via the first communication line, and then the most upstream battery management means powers on another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the central management means grants identification information in order from the battery management means located upstream.
  • the central management means may transmit a first request requesting allocation of identification information to the battery management means connected thereto via the first communication line.
  • the battery management means that has received the first request may transmit a first response containing identification information that the battery management means possesses to the central management means and transmits a power-on instruction to another battery management means located immediately downstream thereof to enable the other battery management means to communicate with the central management means.
  • the central management means that has received the first response may store the identification information contained in the first response received from the battery management means and transmit a second request containing next identification information generated on the basis of a predetermined rule to the other battery management means.
  • the other battery management means that has received the second request may store the identification information contained in the received second request as identification information thereof, transmit a second response notifying the central management means that the battery management means has stored the identification information to the central management means, and transmit a power-on instruction to another battery management means located immediately downstream thereof.
  • the central management means may allocate the identification information in ascending or descending order.
  • the central management means allocates the identification information in ascending or descending order, it can allocate the identification information in ascending or descending order in association with the order in which the batteries connected to the central management means are arranged so that the battery status information acquired from the individual battery management means can be associated with the order in which they are physically arranged, thus allowing easy management.
  • the central management means may transmit the second request until there is no battery management means that does not transmit the second response.
  • the central management means transmits the second request until there is no battery management means that does not transmit the second response, it can detect all battery management means.
  • the central management means may store the number of battery management means in advance and, when granting the identification information, generate an error output if the number of pieces of identification information granted to the battery management means differs from the number of battery management means stored in advance.
  • the central management means stores the number of battery management means in advance, it compares the number of pieces of identification information, granted to the battery management means, sent from the battery management means with the number stored in advance and generates an error output if they differ. This allows an error in the battery management means to be output by an easy method.
  • the central management means may regrant identification information to each of the battery management means if the number of battery management means that the central management means stores is changed.
  • the central management means regrants identification information to the battery management means if the number of battery management means that the central management means stores is changed, correct identification information can be managed even if the number of battery management means is changed during operation.
  • the number of battery management means is changed by, for example, a maintenance tool.
  • the present invention provides the advantageous effect of avoiding an increased communication load and enabling allocation of identification information matching the physical connection order of the row batteries.
  • FIG. 1 is a diagram schematically showing the configuration of a battery apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a diagram schematically showing the configuration of a battery apparatus according to a second embodiment of the present invention.
  • FIG. 1 is a diagram schematically showing the configuration of a battery apparatus according to a first embodiment of the present invention.
  • a battery apparatus 100 has a main configuration including a plurality of battery management sections (battery management means) 10 a , 10 b , and 10 c ; a central management section (central management means) 20 ; a first communication line 30 ; second communication lines 40 ; a row battery group including a plurality of row batteries 50 a , 50 b , and 50 c ; and switching devices 60 a , 60 b , and 60 c.
  • battery management sections battery management means
  • central management means central management means
  • the row batteries 50 a , 50 b , and 50 c are basically composed of a battery cell or a plurality of series-connected battery cells. Each battery cell has a voltage sensor (not shown) for detecting the voltage of the battery cell and a temperature sensor (not shown) for detecting the temperature thereof. Detection results from the voltage sensor and the temperature sensor are output to the battery management section 10 provided for each row battery 50 .
  • the row batteries 50 are each composed of four battery cells in this embodiment, as shown in FIG. 1 , the present invention is not limited thereto.
  • the above secondary batteries are, for example, lithium-ion batteries or lead-acid batteries.
  • the battery management sections 10 a , 10 b , and 10 c are daisy-chained with the second communication lines 40 , and of the plurality of battery management sections 10 a , 10 b , and 10 c , the battery management section located at one end, namely, the battery management section 10 a , is connected to the central management section 20 with the first communication line 30 .
  • the plurality of battery management sections 10 a , 10 b , and 10 c have the plurality of connection switching sections (connection switching means) 60 a , 60 b , and 60 c , respectively, in the second communication lines 40 between the battery management sections to switch the connection and disconnection between the battery management sections.
  • all the connection switching sections 60 a , 60 b , and 60 c are turned off in the initial state.
  • Each of the battery management sections 10 a , 10 b , and 10 c upon determination of its identification information through communication with the central management section 20 , stores the determined identification information and turns on the connection switching section between that battery management section and another battery management section located immediately downstream thereof to enable the other battery management section to communicate with the central management section 20 .
  • the battery management section 10 a upon receiving a request for allocation of identification information, namely, a first request, from the central management section 20 (details will be described later), the battery management section 10 a transmits a first response containing identification information that the battery management section 10 a possesses to the central management section 20 and turns on the connection switching section 60 a between the battery management section 10 a and another battery management section 10 b located immediately downstream thereof to enable the other battery management section 10 b to communicate with the central management section 20 .
  • the central management section 20 side is defined as being upstream, and the side opposite to the central management section 20 is defined as being downstream, as viewed from the battery management section 10 a connected to the central management section 20 with the first communication line.
  • the central management section 20 grants unique identification information to each of the battery management sections 10 a , 10 b , and 10 c and, after granting identification information, acquires information about the battery statuses of the row batteries 50 a , 50 b , and 50 c from the battery management sections 10 a , 10 b , and 10 c , respectively, for management.
  • the central management section 20 allocates the above unique identification information in ascending order.
  • the central management section 20 transmits a first request requesting allocation of identification information to the battery management section 10 a via the first communication line 30 .
  • the central management section 20 Upon receiving a response to the first request, namely, a first response, from the battery management section 10 a , the central management section 20 stores the identification information contained in the first response in association with the battery management section 10 a , generates a second request containing next identification information (for example, an identification number), and transmits the second request to another battery management section 10 b connected by the operation of the battery management section 10 a.
  • next identification information for example, an identification number
  • the central management section 20 Upon receiving a second response from the battery management section 10 b , the central management section 20 stores the identification information contained in the second response in association with the battery management section 10 b , generates a second request containing information next to that identification information, and transmits the second request to another battery management section 10 c connected by the operation of the battery management section 10 b . Furthermore, the central management section 20 repeatedly transmits second requests a predetermined number of times (for example, three times) and, if no second response is received, determines that there is no battery management section that is to return a second response and terminates the allocation of identification information.
  • a predetermined number of times for example, three times
  • the central management section 20 allocates identification information in order of the battery management sections 10 a , 10 b , and 10 c and stores the identification information for the battery management sections 10 a , 10 b , and 10 c in association with the battery management sections 10 a , 10 b , and 10 c.
  • the central management section 20 may store the number of battery management sections to be connected in advance and, when granting identification information, may generate an error output if the number of pieces of identification information granted to the battery management sections differs from the number of battery management sections 10 stored in advance.
  • the number of battery management sections to be connected may be freely rewritable by the user or may be rewritable by a dedicated tool such as software.
  • the central management section 20 After completing the allocation of identification information, the central management section 20 starts normal communication with the battery management sections 10 . Specifically, after granting identification information, the central management section 20 acquires battery information about the row batteries 50 a , 50 b , and 50 c connected to the battery management sections 10 a , 10 b , and 10 c , respectively, from the battery management sections 10 a , 10 b , and 10 c for management.
  • the battery information is, for example, a voltage value received from the voltage sensor provided for each row battery and a temperature value received from the temperature sensor provided for each row battery.
  • the central management section 20 manages the battery status of each row battery and, for example, if any row battery is in an abnormal condition (such as an abnormal terminal-to-terminal voltage or overcurrent), outputs error information to, for example, a PC interconnected to the central management section 20 .
  • an abnormal condition such as an abnormal terminal-to-terminal voltage or overcurrent
  • the central management section 20 First, at the start of granting of identification information, the central management section 20 generates a first request requesting allocation of identification information and transmits the first request to the battery management section 10 a connected thereto via the first communication line 30 .
  • the battery management section 10 a that has received the first request generates a response containing identification information (for example, “0001”) that the battery management section 10 a possesses, namely, a first response, transmits the first response to the central management section 20 , and turns on the connection switching section 60 a between the battery management section 10 a and the battery management section 10 b located immediately downstream thereof to enable the battery management section 10 b to communicate with the central management section 20 .
  • identification information for example, “0001”
  • the central management section 20 that has received the first response stores the identification information, for the battery management section 10 a , contained in the first response in association with the battery management section 10 a .
  • the central management section 20 then transmits a second request containing the next identification information “0002” generated from the identification information “0001” for the battery management section 10 a on the basis of a predetermined rule to the battery management section 10 b.
  • the battery management section 10 b that has received the second request stores the identification information “0002” contained in the received second request as its identification information, transmits a second response notifying the central management section 20 that the battery management section 10 b has stored the identification information to the central management section 20 , and turns on the connection switching section 60 b between the battery management section 10 b and the battery management section 10 c located immediately downstream thereof.
  • the identification information “0003” is allocated to the battery management section 10 c by the same process.
  • the battery management section 10 a is connected to the central management section 20 with the first communication line 30 , and in granting of identification information, identification information is granted to the most upstream battery management section 10 a connected to the central management section 20 via the first communication line 30 , and then the most upstream battery management section 10 a turns on the connection switching section 60 a between the battery management section 10 a and another battery management section 10 b located immediately downstream thereof to enable the other battery management section 10 b to communicate with the central management section 20 .
  • the central management section 20 grants identification information in order from the battery management section 10 a located upstream to allocate the identification information in the order in which the batteries are physically arranged. This allows smooth allocation of identification information to the battery management sections 10 a , 10 b , and 10 c.
  • the identification information can be allocated in ascending or descending order so that the order of the identification information matches the order in which the row batteries are connected. In this case, for example, if any row battery is in an abnormal condition, it is possible to quickly determine which row battery and battery cell is in an abnormal condition.
  • the central management section 20 stores the number of battery management sections to be connected in advance, it can output a lack of the number of battery management sections 10 connected in an easy manner by comparing the number of battery management sections to be connected, stored in advance, with the number of pieces of identification information granted.
  • the processing for the battery apparatus in the embodiment described above is assumed to be implemented by hardware, the present invention is not limited thereto.
  • the processing can be separately implemented by software (battery apparatus control program) based on output signals from the sensors.
  • the battery apparatus includes a CPU, a main storage device such as a RAM, and a computer-readable recording medium on which a program for implementing the entire processing or part thereof is recorded.
  • the CPU retrieves the program recorded on the recording medium and executes manipulations and operations of information to implement the same processing as the hardware described above.
  • a computer-readable recording medium refers to, for example, a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, or a semiconductor memory.
  • the computer program can be distributed to a computer via a communication network and be executed by the computer that has received the program.
  • the central management section 20 in the battery apparatus stores the number of battery management sections to be connected in advance
  • the present invention is not limited thereto.
  • the number of battery management sections to be connected may be variable by, for example, a maintenance tool during operation.
  • the central management section 20 regrants identification information to each battery management section. This allows all battery management sections to be continuously managed even if the number of battery management sections to be connected is changed during operation.
  • the battery management sections 10 are provided for the individual row batteries in the battery apparatus according to this embodiment, the present invention is not limited thereto.
  • the central management section 20 repeatedly transmits second requests three times in the battery apparatus according to this embodiment
  • the present invention is not limited thereto.
  • the number of times second requests are repeatedly transmitted may be freely set by the user.
  • the normal terminal-to-terminal voltage range and temperature limits of the battery cells described above may be freely set by design.
  • the central management section 20 allocates unique identification information in ascending order
  • the present invention is not limited thereto.
  • the allocation may be performed in descending order.
  • the central management section 20 in the battery apparatus allocates unique identification information in ascending order
  • the present invention is not limited thereto.
  • the allocation may be performed in descending order.
  • FIG. 2 Next, a second embodiment of the present invention will be described using FIG. 2 .
  • identification information is allocated to each battery management section by sequentially connecting the second communication lines 40 ; this embodiment differs in that identification information is sequentially allocated to each battery management section by sequentially powering on each battery management section.
  • battery management sections 10 a ′, 10 b ′, and 10 c ′ are daisy-chained with the second communication lines 40 , and of the plurality of battery management sections 10 a ′, 10 b ′, and 10 c ′, the battery management section located at one end, namely, the battery management section 10 a ′, is connected to the central management section 20 with the first communication line 30 .
  • each of the battery management sections 10 a ′, 10 b ′, and 10 c ′, specifically the battery management section 10 a upon determination of its identification information through communication with the central management section 20 , stores the determined identification information and powers on another battery management section 10 b ′ located immediately downstream thereof.
  • a connection switching section 70 a disposed in a third communication line 90 provided in addition to the second communication lines 40 is turned on, and a signal instructing the battery management section 10 b ′ to be powered on is output to the battery management section 10 b ′ via the third communication line 90 .
  • the battery management section 10 b ′ is enabled to communicate with the central management section 20 via the second communication lines 40 , and identification information is allocated to the battery management section 10 b ′ by the same process as in the first embodiment described above.
  • a signal instructing the battery management section 10 c ′ to be powered on is output from the battery management section 10 c ′ via the third communication lines 90 , thus powering on the battery management section 10 c ′.
  • the battery management section 10 c ′ is enabled to communicate with the central management section 20 via the second communication lines 40 , and identification information is allocated to the battery management section 10 c′.
  • the desired identification information can be sequentially granted by sequentially powering on the battery management sections 10 a ′, 10 b ′, and 10 c′.
US13/133,323 2008-12-09 2009-11-30 Battery apparatus Active 2031-03-17 US8742617B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008-313524 2008-12-09
JP2008313524A JP4796119B2 (ja) 2008-12-09 2008-12-09 電池装置
PCT/JP2009/070111 WO2010067724A1 (ja) 2008-12-09 2009-11-30 電池装置

Publications (2)

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US20110273023A1 (en) 2011-11-10
WO2010067724A1 (ja) 2010-06-17
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KR20110092289A (ko) 2011-08-17
CN102239621A (zh) 2011-11-09
CN102239621B (zh) 2014-04-23
JP4796119B2 (ja) 2011-10-19
EP2357713B1 (en) 2018-05-02
EP2357713A4 (en) 2014-05-07
JP2010141971A (ja) 2010-06-24

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